Tuning 2 meter radio antenna ? - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > General Jeep Discussions > Communications and Electronics

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 02-29-2016, 10:15 PM
Thread Starter
  #1
Jeeper
 
my996duc1's Avatar
 
Join Date: Mar 2013
Location: SoCal
Posts: 997
Tuning 2 meter radio antenna ?

I know how to tune a CB antenna but not sure if a 2-meter antenna is tuned the same way.
Any helpful hints, tips, tricks on tuning a 2-meter antenna ?

__________________
2005 LJ Rubicon Sahara #0090

My build project : https://www.wranglerforum.com/f5/rubi...es-328649.html
my996duc1 is offline   Quote
Old 03-01-2016, 10:28 AM   #2
Jeeper
 
sparky's Avatar
 
Join Date: Oct 2009
Location: Phila
Posts: 3,466
It is, however you need a meter that will work in VHF. Most of the inexpensive SWR meters won't give a accurate reading that high up. They can be used to find the lowest point, just that the lowest point reading might not be the true SWR.

__________________
Just because you're offended, doesn't mean you're right.
sparky is offline   Quote
Old 03-01-2016, 12:19 PM   #3
Jeeper
 
LHC30's Avatar
 
Join Date: Jul 2012
Location: Upland CA, Havasu AZ
Posts: 964
From the threads I have found on various HAM sites, it seems the 2 meter band is very tricky to tune properly even with a good VHF SWR meter as Sparky mentioned. I checked mine with a meter and was lucky my diamond dual band antenna was at about 1.2:1....Im leaving it alone...

I'd call Ham Radio Outlet and ask them...
73
LHC30 is offline   Quote
Sponsored Links
Advertisement
 
Old 03-01-2016, 03:44 PM   #4
Jeeper
 
arjeeper's Avatar
 
Join Date: Apr 2012
Location: Bella Vista, AR
Posts: 529
If you buy any off-the-shelf 2m antenna, there will not be any tuning required. It'll be ready to operate once connected to your mount, assuming your mount is properly designed and attached.
__________________
'16 JKUHR Granite Crystal Metallic. Auto. 4.10s. Alpine.
Gone: '06 XK, '12 JKR, '06 LJ Rubi, '06 WK, '04 TJ, '97 ZJ, '95 YJ
arjeeper is offline   Quote
Old 03-01-2016, 03:51 PM   #5
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 48,394
Quote:
Originally Posted by arjeeper View Post
If you buy any off-the-shelf 2m antenna, there will not be any tuning required. It'll be ready to operate once connected to your mount, assuming your mount is properly designed and attached.
My Hustler 2m antenna's swr benefitted significantly from tuning it. That was with a well installed mount (I did it) which provided a very good groundplane.
__________________
When you have a choice, buy American.
Jerry Bransford is offline   Quote
Old 03-01-2016, 04:38 PM   #6
Jeeper
 
sparky's Avatar
 
Join Date: Oct 2009
Location: Phila
Posts: 3,466
Quote:
Originally Posted by Jerry Bransford View Post
My Hustler 2m antenna's swr benefitted significantly from tuning it. That was with a well installed mount (I did it) which provided a very good groundplane.
As did mine. I was also using quick disconnects since I was switching between a Hustler CG-144 (which Jerry won't like because it's 7' ) and a Hustler SF-2 that I could stash in the back. The tips needed to be shortened to make up for the disconnect. I borrowed a friends MFJ-259 to get them set properly. Running off a ball mount behind the driver side door.
__________________
Just because you're offended, doesn't mean you're right.
sparky is offline   Quote
Old 03-01-2016, 04:51 PM   #7
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 48,394
Yep my Hustler is the SF-2 which I only use when my little shorty won't work. My most often used 2m antenna is ridiculously short but it still works fine for my offroad simplex and local repeaters. I only use the SF-2 for things like the King of the Hammers event where it's all simplex and hills/canyons everywhere.
__________________
When you have a choice, buy American.
Jerry Bransford is offline   Quote
Old 03-01-2016, 05:08 PM   #8
Jeeper
 
sparky's Avatar
 
Join Date: Oct 2009
Location: Phila
Posts: 3,466
For day to day communication the SF-2 worked fine.

When I wanted to try for additional distance the CG-144 went on. Our club used to run a 2M FM simplex sprint contest. Multipliers were ZIP codes. I'd run around for four hours giving out as many multipliers as I could.
__________________
Just because you're offended, doesn't mean you're right.
sparky is offline   Quote
Old 03-01-2016, 05:26 PM   #9
Jeeper
 
arjeeper's Avatar
 
Join Date: Apr 2012
Location: Bella Vista, AR
Posts: 529
Quote:
Originally Posted by Jerry Bransford View Post
My Hustler 2m antenna's swr benefitted significantly from tuning it. That was with a well installed mount (I did it) which provided a very good groundplane.
Interesting. I have Comet and Diamond antennas for 2m and 70cm and all have had flat SWR, big had no built in means of adjusting resonance anyway.
__________________
'16 JKUHR Granite Crystal Metallic. Auto. 4.10s. Alpine.
Gone: '06 XK, '12 JKR, '06 LJ Rubi, '06 WK, '04 TJ, '97 ZJ, '95 YJ
arjeeper is offline   Quote
Old 03-01-2016, 11:09 PM
Thread Starter
  #10
Jeeper
 
my996duc1's Avatar
 
Join Date: Mar 2013
Location: SoCal
Posts: 997
Thank you for all the info. Sounds like I may need to find a place to tune this as it doesn't sound like my $20 CB SWR meter is going to work well.

When I order my 2 meter radio I was suggested two different antennas.
I bought a short on that I could leave on for day-to-day driving and pull in garages. The longer for the off-roading where I wanted to try for long distance.

Comet CA-2x4SR (40" long)
Comet SBB2 (18" long)
__________________
2005 LJ Rubicon Sahara #0090

My build project : https://www.wranglerforum.com/f5/rubi...es-328649.html
my996duc1 is offline   Quote
Old 03-02-2016, 07:48 AM   #11
Jeeper
 
arjeeper's Avatar
 
Join Date: Apr 2012
Location: Bella Vista, AR
Posts: 529
Or find another amateur radio operator that has an antenna analyzer that includes 2m.

I have an MFJ 259b that does the trick of needed.

__________________
'16 JKUHR Granite Crystal Metallic. Auto. 4.10s. Alpine.
Gone: '06 XK, '12 JKR, '06 LJ Rubi, '06 WK, '04 TJ, '97 ZJ, '95 YJ
arjeeper is offline   Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off






All times are GMT -5. The time now is 04:32 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, Gladiator, Mopar and Grand Cherokee are copyrighted and trademarked to FCA US LLC.
Wranglerforum.com is not in any way associated with FCA US LLC.